UPSC Exam > UPSC Questions > Consider the following pairs regarding volcan...
Start Learning for Free
Consider the following pairs regarding volcanic landforms:
1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.
2. Dike - An igneous mound with a dome-shaped upper surface and a level base.
3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.
4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.
How many pairs given above are correctly matched?
- a)Only one pair
- b)Only two pairs
- c)Only three pairs
- d)All four pairs
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Consider the following pairs regarding volcanic landforms:1. Sill - An...
1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks. This is correctly matched as sills are indeed horizontal intrusions.
2. Dike - An igneous mound with a dome-shaped upper surface and a level base. This is incorrectly matched. Dikes are vertical intrusions that cut across existing rock layers, not dome-shaped mounds.
3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline. This is incorrectly matched. Laccoliths are dome-shaped intrusions with a flat base, whereas phacoliths occupy the crest of an anticline or the bottom of a syncline.
4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust. This is correctly matched as batholiths are indeed large, deep-seated intrusive bodies.
Additional Information:
Dikes are typically vertical or steeply inclined sheets of rock that form when magma intrudes into pre-existing rock formations.
Laccoliths have a characteristic dome shape because the pressure of the magma causes the overlying strata to bulge upwards.
Phacoliths are typically found in the crests of anticlines or troughs of synclines, not as laccoliths.
Thus, only pairs 1 and 4 are correctly matched, making Option B the correct answer.
Most Upvoted Answer
Consider the following pairs regarding volcanic landforms:1. Sill - An...
Understanding Volcanic Landforms
Volcanic landforms are geological structures formed by the movement of magma. Let's analyze the given pairs to determine their correctness.
1. Sill
- Definition: An intrusion of molten magma that is oriented horizontally along the bedding planes of sedimentary rocks.
- Correctness: This pair is correctly matched.
2. Dike
- Definition: A dike is a vertical or steeply inclined intrusion of igneous rock that cuts across existing rock layers.
- Correctness: This definition describes a dike inaccurately as it refers to an igneous mound with a dome-shaped upper surface. Therefore, this pair is incorrectly matched.
3. Laccolith
- Definition: A laccolith is a lens-shaped body of igneous rock that has intruded between layers of sedimentary rock, often causing the overlying layers to bulge upward.
- Correctness: The description of a laccolith occupying the crest of an anticline or the bottom of a syncline is misleading, making this pair incorrectly matched.
4. Batholith
- Definition: A batholith is indeed a large body of intrusive igneous rock that forms from cooled magma deep within the Earth's crust, typically composed of granite.
- Correctness: This pair is correctly matched.
Conclusion
- Correctly Matched Pairs: Sill and Batholith
- Incorrectly Matched Pairs: Dike and Laccolith
Thus, the number of correctly matched pairs is two, confirming that the answer is option 'B'.
Volcanic landforms are geological structures formed by the movement of magma. Let's analyze the given pairs to determine their correctness.
1. Sill
- Definition: An intrusion of molten magma that is oriented horizontally along the bedding planes of sedimentary rocks.
- Correctness: This pair is correctly matched.
2. Dike
- Definition: A dike is a vertical or steeply inclined intrusion of igneous rock that cuts across existing rock layers.
- Correctness: This definition describes a dike inaccurately as it refers to an igneous mound with a dome-shaped upper surface. Therefore, this pair is incorrectly matched.
3. Laccolith
- Definition: A laccolith is a lens-shaped body of igneous rock that has intruded between layers of sedimentary rock, often causing the overlying layers to bulge upward.
- Correctness: The description of a laccolith occupying the crest of an anticline or the bottom of a syncline is misleading, making this pair incorrectly matched.
4. Batholith
- Definition: A batholith is indeed a large body of intrusive igneous rock that forms from cooled magma deep within the Earth's crust, typically composed of granite.
- Correctness: This pair is correctly matched.
Conclusion
- Correctly Matched Pairs: Sill and Batholith
- Incorrectly Matched Pairs: Dike and Laccolith
Thus, the number of correctly matched pairs is two, confirming that the answer is option 'B'.
|
Explore Courses for UPSC exam
|
|
Top Courses for UPSCView all
Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer?
Question Description
Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer?.
Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Consider the following pairs regarding volcanic landforms:1. Sill - An intrusion of molten magma made horizontally along the bedding planes of sedimentary rocks.2. Dike - An igneous mound with a dome-shaped upper surface and a level base.3. Laccolith - A lens-shaped mass of igneous rock occupying the crest of an anticline or the bottom of a syncline.4. Batholith - A large emplacement of igneous intrusive rock, mainly granite, that forms from cooled magma deep in the Earth’s crust.How many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice UPSC tests.
|
|
Explore Courses for UPSC exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup